Transportable typewriter



June 10 1924. 1,497;482

H. BURG TRANSPORTABLE TYPEWRITER Filed May 6, 1922 3 Sheets-Sheet 1 N v //1 vim me Hubert 5w 5 Y June 10 1924.

H. BURG TRANSPORTABLE TYPEWRI TER 3 Sheets-Sheet 2 Filed May 6, 1922 v Mani /W02, JiuZerZ-Jwy June 10 1924. r

- H. BURG TRANSPORTABLE TYPEWRI TER Filed May 6, i922 3 Sheets-Shea t 5 Patented June 10, 19 24.

PATENT OFFICE.

HUBERT BURG, OF MOLLKIRCH, FRANCE.

TRANSPORTABLE TYPEWRITER.

Application filed May 6, 1922.

To all whom it may concern Be it known that I, HUBERr BURG, a citizen of the Republic of France and residing at Mollkirch, Bas-Rhin Department, in the Republic of France, have invented certain new and useful Transportable Typewriters, of which the 'followingis a speci fication.

This invention relates to a transportable typewriting machine. Apparatus of this class should have their height reduced as far as possible, thus giving rise to special arrangements of operating mechanism, inasmuch as the latter is required to be situated at the same height as the key levers.

According to my invention, the key levers situated at the middle part of the machine have sufficient spacing for the passage of the elements connecting the actuating elements with the releasing elements, and furthermore, the type levers are so disposed as to occupy an approximately horizontal position upon their contact member when in the till! inoperative position. I

In this case the angle described by the said levers is relatively considerable, thereby causin vers i the type is to strike in the pro er manner without requiring any more e ort upon the keys than in-the improved typewriters of the known class. In the present machine this drawback is obviated by the use of a special arran ement of the operating mechanism where y each type lever is acted upon at a oint situated at some distance from its pivoting point at the beginning of each movement, both during the return stroke and the operating stroke.

The machine [according to this invention possesses further particular features of an advantageous nature which will be described hereunder.

The following descriptiomtogether with the accompanying drawings which are given by way of example, sets forth anembodiment of my invention.

Fig. 1 is a plan view of the machine with various accessory elements removed or broken away.

Fig. "2 is a horizontal section.

Fig. 3 is a perspective view of the details of various actuating devices.

difliculties in actuating-the type le- Serial No. 558,905.

Fig. 4 is an elevational view of the actuatlngdevices for the spaces.

Figs. '5 and 6 are sectional and plan views of the actuating devices for the carriage.

Fig. 7 is an elevational view of the machine in the closed position, on a smaller scale than the preceding figures.

Each typewriting key 1 is pivoted to a support 2, and the outer end thereof is connected by a link 3 with a bent lever 4. The latter is adapted to swing upon an axle 5 and is brought back by the spring 6, the upper end of the lever being pivoted to an arm 7 having a slotf8 wherein is engaged a pin '9 secured to the type levef'lIT. The arm 7 is provided with the pins 11, 12 alternately engaging the lever 10 which ispivoted to the axle 13. When the key 1 is pressed, the lever 4is caused to move, and the arm 7 is brought forward as well as raised. The slot 8 slides upon the pin 9, and the pin 11 drives forward the lever. 10, acting thereupon at a point situated at some distance from its pivoting axis 13, which condition favours the easy working of'the keys; the lever 10 is thus moved forward into the position shewn in the dotted lines.

When near the end of this movement, the arm 7 acts upon the pin 9 in order to print with the type with all the ressure resulting from the vis viva acqulred during the motion. spring 6 will act, and the pin 12 brings back the lever 10 to the first position upon the supporting plate 14. The said pin acts upon the lever 10 at a point which is also at a certain distance from its pivoting point, and in this manner the force of the spring 6 can be correspondingly reduced.

'To facilitate mounting and dismounting, the lever 10 ends in a hook of circular sha e 15 engaging the axle 13, and the said hoo is held against a guide 16 by a wedge 17 which is secured in a removable manner. The cut-out part of the hook-is so disposed that when the wedge 17 is removed and the Upon releasing the key 1, the .85

lever 10 moved down in the forward posi- 1 tion, the said lever'can be readily disengaged from the axle 13. When the key 1 is pressed it raises a U-shaped lever 18 which is pivoted by the trunnions 19 to the supports 20 secured to the plate M. The

p the arm 26 which said lever acts upon a pin 21 carried by a .lever 22 which is adapted to swing upon an to a pawl 28.

The said pawl engages a ratchet wheel 29 mounted on the shaft 30 carrying-the gears 31, 32 which cooperate in an alternate manner with the gears 33, 34 mounted on the ribbon reels. To this effect, the shaftmay be moved in the lengthwise sense as desired,by' means of a lever 35, so as to engage one of the gears 33 or 34. This'affords the winding and unwinding of the ribbon in either sense. The lever 22 carries a transverse rod 35 actuating the arm 24 by acting upon the extension 36 of the said arm; at the same time the said rod is caused to act upon a lever 37 connected by a rod 38 with the ratchet drive of the carria e. l

n this manner when a key 1 is pressed it affords at the same time the printing with the type, and the lifting of the ribbon, and it repares for the forward motion of the rib on and for the forward motion of the carriage, this motion taking place when the ke is again raised. For the spacing effect, a ar 39 connected with a swinging lever 39'- provides for an upward action upon an arm 40 secured to the lever 37. The move ment of the said lever has no action upon the transverse rod35, and for this reason the rod 38 controlling the carriage will be alone actuated. 7

To produce the signs, accents and the like, the operator makes use of a special key 41 at the side of the machine which is so disposed as to move outside of the levers 18.

.for it is necessary that the carriage should remain in position, and only the ribbon isto be moved. The key 4l-raises a bent lever 42 pivoted to the axle 43 and secured to a rod 44 which act-uates a lever 45; the latter ends in a finger 46 which acts upon'an arm 47 secured to the rod 25. In this movement, the extension 36 is separated from the'transverse rod 35 by rotating on the axle .23.

and the armn26 and pawl 28 are thereby. moved whilst the levers 22 and, 37 are inactive.

'lofacilita'te the constructionand to provide for the proper working of the apps ratus'; a sufficient number of levers 18, four for example, are mounted along the plate the intermittent movement of the carria This device, of a known type, comprises 51 members 50, 51, 52- it engages by means of the tooth 52 with the rack of the carria e.

5n the other hand, the alternate vertical motion of the ribbon is effected as follows:

When' the rod 25 is drawn upon, a lever 53 moves upon its axle 54 and a slide 55, which travels upon a fixed support 55 and is connected with the lever 53 by an axle 56, is driven forward. The slide 55 carries the ribbon 57, and the latter is thus brought into the striking position upon pressing any one of thekeys, and is-then brought to the rear so as to uncover the printing when v the rod 25 moves backward.

For-printing in capital letters by the use of a second set of characters disposed upon the members 10, the axle 54 is enga ed in a holder 58 wherein it is maintains by a link 59 mounted on an axle 60 which cured to a bent lever 61 carrying the roller 62, so that pressing a key 63 will cause at the same time the movement of the said roller and that of the axle 54, and therefore the movement of the ribbon holder. It is understood that this additional displacement of the ribbon holder is independent of its alternate motion as controlled'by the rod 25.

The reels 64 are disposed upon the trunnions 65 carried by the arms 66. The reels are put in place by raising the arms 66 and then allowing them to fall,

In order to reduce the space occupied by the machine and to render it more easily transportable, the portion 67 of the table 68 mounted below the keyboard is pivoted to an axle 69rand serves as a support durin the operation of the device, while provi in for the free movement of the keys. At

the sides, the flaps 70 which are pivoted to the axles 71, 72, can be folded down vertically at the exterior and. are provided with the studs 73 engaging a like flap 74 adapted to-fold down at the rear of the machine.

The fiaps 70 thus constitute supports for is sesuitably raising the base plate of the machine 68, and if necessary they can be reinforced by ribs of adequate form: The flap 74 is bent at an angle, as shown, in order to serve as a.cover when in the closed posi: tinny-and thus to cover a part of the machine, Fig. 7. The closing is completed by a hinged fiap76 which is folded as desired, Fig. 2.

lie. order that the type when in the inop-- erative position shall be properly held against the bearing plate 14 and that the type bars shall incur no risk of bending while being cleaned and even under the effect oi. an energetic rubbing action, the facing of the said plate in soft material such as cloth, felt or the like, comprises the grooves 77 wherein the type bars are caused to engage with the least possible lay. Should one of the bars be bent out of shape for any reason, this fact will be shown at once, inasmuch as the type will be'unable to return into the recess and will form a noticeable projection upon the remainder of the row of type which are correctly disposed in place.

Claims! a v 1. ln a portable typewriting machine, typeholding levers adapted to describe a considerable angle of oscillation, key levers, means for connecting said ty if-holdinglevers to said key levers, a hoo of external cylindrical shape formed upon each typeholding lever and at the end opposite the type, a stationary axle upon which the said hook is engaged, a stationary guide .with cylindrical concave surface against which the said hook is maintained, a movable wedge with cylindrical concave surface adapted to maintain'the said hook upon said axle and against the said guide, the hook being so disposed that upon removing the wedge and bringing down the'said typeholding lever in the forward direction, the said lever can be disengaged from said axle.

2. In a transportable typewriter, type levers, key levers, transverse bars dis osed above the key levers, the said bars ing adapted to be raised when one of the key levrs is pressed, lever arms secured to the said bars, fixed axles having the said lever arms pivoted thereto, extensions formed upon two of the said lever arms and extending outwardly of the fixed axles, a revoluble transverse shaft of short length, a lever with two arms mountedupon the said shaft, stop-pieces being struck and driven downwardly by the said extensions of the'lever arms secured to the bars, a transverse rod mounted upon the other arm of thesaid lever, an arm disposed u on the short shaft, a cam mounted upon t c said shaft, the said cam being adapted to be raised by the said transverse rod at each movement of one of the key levers, a device for"raising the ribbon, and means for connectin the said arm with the said ribbon-raising evice;

3. in a transportable typewriter, type levers, key levers, transverse bars disposed above the key levers, the said bars being adapted to be raised when one of the key levers is pressed, lever arms secured to the said bars, fixed axleshaving the said lever arms pivoted thereto, extensions formed upon two of the said lever arms and extending outwardly of the fixed axles, a revoluble transverse shaft of short length, a lever with two arms mounted upon the said I shaft, stop-pieces rovided upon one of the arms of the said ever, the said stop-pieces being-struck and driven downwardly by the said extensions of the lever arms secured to the bars, a transverse rod mounted upon the other arm of the said lever, a spacing bar, a lever carrying the said bar, a bent lever mounted upon the said short shaft, one

arm or the said lever being adapted to be levers is pressed, swinging lever arms secured to the said bars, means for raising the ribbon, means for winding the ribbon, means for connecting the said ribbon-raising and ribbon-winding means, a. type lever for printing the signs and accents, a key lever for actuating the said type lever, the said key lever being, disposed.

outwardly 'ot' the said transverse bars, a bent lever adapted to be raised b the said accent-printing key lever, a fixed orizontal axle having the said bent lever pivoted thereupon, a double-armed lever, a vertical shaft having the said double-armed lever pivoted thereupon, a traction rod pivoted on the one hand to the said bent lever and on the other hand to one arm of the said double-armed lever, the second arm ofthe a Y lever being secured to the connecting means joining the said transverse bars to the said ribbon-raising and ribbon-windin means.

5. in a transportable typewriter, type levers, key levers, transverse bars dis osed above the key levers, the said bars ing adapted to be raised when one of the key levers is ressed, swinging lever arms bars with the said secured to t e said bars, means for raising the ribbon and forfwinding the ribbon, a traction rod pivoted to the said means, means for transmitting motion, adapted to transmitthe motion of the said transverse bars to the said traction rod, a key lever for the accents, the said key lever being disposed outwardly of the said transverse bars,

a double-armed lover, .a vertical shaft having the said double-armed lever pivoted thereupon, means for connecting one end of the double-armed lever with the said nocent-forming key lever, a fin er mounted upon the other end of the 'ouble-armed lever, a stop-piece disposed uponthe said traction rod, the sald stop-piece being adapted to be impelled by the said finger when the accent-forming key is pressed, the

said finger not being actuated when the said stop-piece is displayed by the movement produced by the said transverse bars.

6. In a transportable typewriter, a aper, carrying roller, a revoluble shaft para el to the said roller, a swinging support secured to the said shaft and carrying the said roller, a key lever for actuating the said shaft, a link pivoted to the said support, an axle mounted upon the said link, a holder adapted to receive the said axle, a doublearmed lever disposed upon the said axle, a slide pivoted toone end of the said lever, a ribbon disposed upon the said slide, a fixed guide-piece for the said s'lide, a traction rod pivoted to the other end of the said double-armed lever, key levers, and means for transmitting the motion of the keys to the said traction rod.

7. In a transportable typewriter, ribbon spools, an actuatingshaft of considerable length, arms adapted to swing loosely upon the said shaft, a trunnion disposed upon each of the said arms, the said trunnions being adapted to engage the said spools, key

levers, means for transmitting to the said actuating shaft an intermittent movement of rotation each time that a key is pressed,

and means for transmitting the intermittent rotation of the actuating shaft to the said spools.

8. In a transportable typewriter, key levers, a lever with spacing bar, a pivot axle whereon is caused to oscillate the said lever with spacing bar, a base plate, the said base plate bein divided into two parts pivoted together whereof one part is fixed, the part situated above the key levers being of a folding nature and forming a supporting foot when folded down.

9. In a transportable typewriter, key levers, a lever with spacing bar, a pivot axle whereon is caused to oscillate the said lever with spacing bar, a base plate divided into two parts whereof one is fixed and the other folding, these two parts being pivoted together, the said pivot axle being disposed upon the said folding part.

10. In a portable typewriting machine, a box of prismatic shape comprising a base plate, a rear vertical wall pivoted to said plate and vertically movable above the same, and a forwardly situated element disposed opposite the keys constituting an extension for the said plate and pivoted thereto, and adapted to be brought below the plane of said plate so as to form a supporting foot.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

HUBERT BURG. lVitnesses FRANK A. KELLER, MARTHE STEINEBRUNNE. 

